runtime-postinstall: Turn off lvm monitoring

We don't install dmeventd or the event libraries so monitoring will fail
to start. The should solve weldr#1328 and rhbz#2236524

With this in place there are no syslog messages about dmeventd or event
libraries. lvm.conf does contain logged messages about dmeventd falling
back to various things, but no actual errors.

share/templates.d/99-generic/runtime-postinstall.tmpl

@@ -112,6 +112,8 @@ remove etc/lvm/cache/*
 remove etc/lvm/cache
 remove etc/lvm/lvm.conf
 append etc/lvm/lvm.conf "global {\n\tuse_lvmetad = 1\n}\n"
+# dmeventd and event libraries are not installed
+append etc/lvm/lvm.conf "activation {\n\tmonitoring = 0\n}\n"
 
 ## Remove machine specific nvme-cli files
 remove etc/nvme/hostid